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A comment on Chalice: Python Serverless Microframework for AWS. Parent comment

Re:Chalice: Python Serverless Microframework for AWS by d4mi3n on Monday July 11, 2016 @05:48PM (#12074992)
AFAIK Lambda is the only way to react to events on S3 buckets. A lot of what I've seen it used for is as a mechanism for kicking off a workflow off of a new item in S3.
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Re:Chalice: Python Serverless Microframework for AWS by adzicg on Monday July 11, 2016 @06:11PM (#12075181)
you can push S3 events to SQS and then consume it anywhere (eg we had file converters running on Heroku, listening to S3 events through SQS)

Likewise, Lambda can execute events from SNS, Cloudwatch Events, Dynamo and a lot more, including the Amazon workflow system.

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Re:Chalice: Python Serverless Microframework for AWS by brianwawok on Monday July 11, 2016 @06:02PM (#12075118)
SNS can be consumed from anywhere not just Lambda.
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